The steam temperature is unstable; how should this be addressed in the design?
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This post was last edited by luckyyjjun on 2017-9-9 at 18:01. Currently, the steam supplied to the client comes from the plant’s heat generation facility; its pressure varies between 8 and 10 atm, while its temperature ranges from 180 to 220°C. This results in significant fluctuations in the existing distillation towers. In the event of a new design, how can these large fluctuations in utility supplies be addressed?
The process design selects the heat exchange area based on the poor quality of steam, while the strength design is based on the highest temperature and pressure conditions.
But unstable steam can affect the tower pressure, evaporation rate, and stability control; how to address this?
Let a control valve regulate the flow rate as a secondary loop, with the flow rate serving as a compensation for temperature and pressure. The bottom of the tower temperature or the sensor plate temperature serves as a secondary circuit for main circuit regulation.
The previous set featured a steam buffer tank, with temperature and humidity control, as well as a pressure regulating valve
Calculations for the reboiler are considered under low pressure and low temperature conditions, while the system’s design parameters are based on high pressure and high temperature conditions.
In fact, it’s not possible for all users to connect directly to the main pipeline without any adjustments; either manual valves or control valves are required. You can solve the problem by installing a pressure control valve or a temperature control valve here.
It’s not very large; it has two control valves, one tank, and one pump
What the original poster is asking is where to install the pressure control valve or the stability control valve?
{:3_68:} There is automatic interlocking between pressure and the valve, so the steam pressure can’t fluctuate suddenly up and down; there is always a certain process involved. An online pressure gauge placed behind the valve will suffice